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Database Design Using Normalization Chapter 4 Quiz

18 Questions

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Database Design Using Normalization Chapter 4 Quiz

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Questions and Answers

What is the primary reason for avoiding multivalued dependencies in databases?

To speed up application processing

To eliminate data anomalies (correct)

To improve data integrity

To reduce data redundancy

What is the main purpose of read-only databases in business intelligence systems?

For transaction processing

For data mining and reporting (correct)

For-application development

For data storage

What is a characteristic of read-only databases?

They are updated frequently

They are never updated in the operational database sense (correct)

They are used for transaction processing

They are used for data entry

What is the primary advantage of denormalization in read-only databases?

It improves application processing speed Signup and view all the answers

What is a common use of read-only databases?

Data warehouses Signup and view all the answers

What is the main goal of designing read-only databases?

To produce information for decision making Signup and view all the answers

What is a primary goal when designing a read-only database?

To optimize data querying performance Signup and view all the answers

What type of dependency is present when a single column value determines the values of other columns?

Functional dependency Signup and view all the answers

What is denormalization?

The process of increasing data redundancy Signup and view all the answers

What is a common issue in database design that can be addressed through normalization?

All of the above Signup and view all the answers

What is an essential step in assessing table structure?

All of the above Signup and view all the answers

What type of database is typically designed to store data from updatable databases?

Read-only database Signup and view all the answers

What issue does the multivalue, multicolumn problem in database design represent?

A problem where multiple values of an attribute are stored in more than one column Signup and view all the answers

What is a common solution to the multivalue, multicolumn problem in database design?

Using a separate table to store the multiple values Signup and view all the answers

What is denormalization in the context of database design?

The process of adding redundant data to improve query performance Signup and view all the answers

What is a common issue with designing read-only databases?

Difficulty in performing complex queries Signup and view all the answers

How does data warehousing address the multivalue, multicolumn problem in database design?

By avoiding the use of multiple values for a single attribute Signup and view all the answers

Which of the following is a common problem with designing databases from existing data?

Inconsistent values Signup and view all the answers